edgar hoover sent robert kennedy a warning, communists were pulling dr. king's puppet strings. two top advisors, including lawyer stanley levison, had been party members, they cut ties working with king. >> the bureau never came up with one iota of indication that levison or anyone else was actively working some communist line or communist influence. >> congressman john lewis, a longtime democratic power in the house, was an important young leader in king's inner circle. >> j. edgar hoover never understood, and others around him, that when you've been discriminated against, you don't need someone from moscow or someone from any other part of the world to tell you that you are being discriminated against. >> but in october of 1963, robert kennedy signed off on wiretaps. atlanta agents broke into dr. king's home and office to install them. did you know the fbi was tapping your phones? >> oh, yeah. >> you assumed it or knew it? >> no, we knew it. >> nothing was sacred. young remembers how fellow minister ralph abernathy discovered an fbi bug while speaking at an alabama church. >>